Question

Find xy if x - y = 2 and x + y = 4.​

Answer 1

Step-by-step explanation:

Given that, x - y = 2 ..........(i)

and x + y = 4..........(ii)

Find: xy =?

Now adding equation (i) &(ii),we get

2x=6=>x=6/2=3

So, y = 4-x=4-3=1.

:.xy=3×1=3. (Ans)